/*
    * Copyright 2011 FatWire Corporation. All Rights Reserved.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *    http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.fatwire.gst.foundation.controller.action.support;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  import COM.FutureTense.Interfaces.ICS;
  import COM.FutureTense.Util.ftErrors;
  
  import com.fatwire.gst.foundation.CSRuntimeException;
  import com.fatwire.gst.foundation.controller.action.Action;
  import com.fatwire.gst.foundation.controller.action.ActionLocator;
  
  /**
   * ActionLocator that looks at an attribute of a WRA and retrieves the
   * 'gstaction' attribute, then determines what to do.
   * 
   * @author Tony Field
   * @since Mar 24, 2011
   */
  final class AttributeActionLocator implements ActionLocator {
      protected static final Log LOG = LogFactory.getLog(AttributeActionLocator.class.getPackage().getName());
      public static final String GST_ACTION_ATTR_NAME = "gstaction";
      public static final String ACTION_TYPE_SPRING_BEAN_PREFIX = "spring-bean:";
  
      public Action getAction(final ICS ics) {
          final String attribute = getAttribute(ics);
          final Action action = getAction(ics, attribute);
          if (action == null) {
              throw new CSRuntimeException("No action configured for attribute: " + attribute, ftErrors.badparams);
          }
          return action;
  
      }
  
      public Action getAction(final ICS ics, final String name) {
          final Action result = getAction(name);
  
          return result;
      }
  
      private String getAttribute(final ICS ics) {
          return null; // todo: high: figure out if it's even possible to access
          // the WRA yet - we haven't resolved the pretty URLs yet
      }
  
      private Action getAction(final String attribute) {
          return null; // todo: high: implement
      }
  }